1. Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
2. Department of Anatomy, Histology and Embryology and K.K. Leung Brain Research Centre, School of Basic Medicine, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
3. Department of Biochemistry and Molecular Biology, Shaanxi Provincial Key Laboratory of Clinical Genetics, School of Basic Medicine, Fourth Military Medical University, Xi'an, Shaanxi 710032, China